[Coco] model 4 cp/m

[Gene Heskett]

On Saturday 06 January 2007 03:48, Bob Devries wrote:
>AmigaDOS 3.x is not too hard to come by. I have it here on two of my
> Amigas. The ROM required may be a little more difficult however.

Yeah, that's a 27c4000, a special footprint version of the 27c4096, and 
its made out of pure unobtainium except for the legal suppliers.  Even 
they may be putting it in adapters now.  It was also available from Atmel 
for a while many years ago.

But here is a recommendation too.  When you do get the 3.1 kickstart 
rom(s) before putting them in the amiga, find someone with a burner and 
have them make you a file copy of them.  Why?  Because their burn is 
underdone, and will suffer bit rot eventually, at which point you will 
need those files to be fed back into the eproms after they've been UV 
erased and made ready to reburn.  I had to do it to both copies I bought 
within 6 months, but once they had been reburned, they were good to go 
for the long haul.  I have NDI what prompted me to save them in the first 
place, but I'm glad I did.
 
I never did get around to buying 4.0 as it wasn't yet available by the 
time my box died of a broken hard drive, but 3.9 was many times more 
stable than 3.1 was.

>I do believe that a German company is still selling that and version 4.x
>also.
>
>--
>Regards, Bob Devries, Dalby, Queensland, Australia
>
>Isaiah 50:4 The sovereign Lord has given me
>the capacity to be his spokesman,
>so that I know how to help the weary.
>
>website: http://www.home.gil.com.au/~bdevasl
>my blog: http://bdevries.invigorated.org/
>
>----- Original Message -----
>From: "Willard Goosey" <goosey at virgo.sdc.org>
>To: <coco at maltedmedia.com>
>Sent: Saturday, January 06, 2007 6:24 PM
>Subject: Re: [Coco] model 4 cp/m
>
>> >From: "Richard E. Crislip" <rcrislip at neo.rr.com>
>>>
>>>Date: Fri, 5 Jan 2007 17:42:00 -0500
>>>
>>>I did not know that. I always thought they were essentially the same,
>>> just improved.
>>
>> Well, I really don't know much about the hardware, so  I may be bs'ing
>> you a bit.  The two big things I know about are that the Model 4 can
>> unmap the BASIC ROM for 64K RAM -- instead of the 48K RAM 16K ROM
>> Model III, and 80x24 text versus 64x16 text.
>>
>>>Yeah... that's a bummer. I am dealing with that right now, because
>>>I'm in the process of completely moving away from the old Amiga.
>>
>> Ohh, ouch.  Amiga floppies.  That is painful.
>>
>> I would like to do more with my Amiga, but I get frustrated because
>> all I've got is AmigaDOS 2, and all the reall nice development
>> software wants v.3.
>>
>> Willard
>> --
>> Willard Goosey  goosey at sdc.org
>> Socorro, New Mexico, USA
>> "I've never been to Contempt!  Isn't that somewhere in New Mexico?"
>>   --- Yacko
>>
>> --
>> Coco mailing list
>> Coco at maltedmedia.com
>> http://five.pairlist.net/mailman/listinfo/coco

-- 
Cheers, Gene
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
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Copyright 2007 by Maurice Eugene Heskett, all rights reserved.